Andrew L.
I prefer a combination of kindle/hand held book with audio books. Sometimes having a hand held book is better because I like the feel of holding it in my hands. However, the books build up eventually and it's really hard to transport them when moving, so I resort to kindle instead. When reading however, I am better focused when I listen to an audio book. If not, I tend to repeat the paragraph I just read over and over before finally understanding it. Audio books are very helpful for me as they keep me focused on the reading and gives me a speed boost while reading.